Patch "drm/nouveau/pci/msi: disable MSI on big-endian platforms by default" has been added to the 4.12-stable tree

This is a note to let you know that I've just added the patch titled

drm/nouveau/pci/msi: disable MSI on big-endian platforms by default

to the 4.12-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
drm-nouveau-pci-msi-disable-msi-on-big-endian-platforms-by-default.patch
and it can be found in the queue-4.12 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Ilia Mirkin <[email protected]>
Date: Thu, 10 Aug 2017 12:13:40 -0400
Subject: drm/nouveau/pci/msi: disable MSI on big-endian platforms by default

From: Ilia Mirkin <[email protected]>

commit bc60c90f472b6e762ea96ef384072145adc8d4af upstream.

It appears that MSI does not work on either G5 PPC nor on a E5500-based platform, where other hardware is reported to work fine with MSI.

Both tests were conducted with NV4x hardware, so perhaps other (or even this) hardware can be made to work. It's still possible to force-enable with config=NvMSI=1 on load.

---
 drivers/gpu/drm/nouveau/nvkm/subdev/pci/base.c |    4 ++++
 1 file changed, 4 insertions(+)

@@ -192,6 +192,10 @@ nvkm_pci_new_(const struct nvkm_pci_func
 		}
 	}
 
+#ifdef __BIG_ENDIAN
+	pci->msi = false;
+#endif
+
 	pci->msi = nvkm_boolopt(device->cfgopt, "NvMSI", pci->msi);
 	if (pci->msi && func->msi_rearm) {
 		pci->msi = pci_enable_msi(pci->pdev) == 0;

Patches currently in stable-queue which might be from [email protected] are

queue-4.12/drm-nouveau-pci-msi-disable-msi-on-big-endian-platforms-by-default.patch